Heiqiuzi

Black wattle is an oil plant. The scientific name is Mao Di, and it was called Songyang in ancient times. It has been cultivated in the Spring and Autumn Period. There are two types: Fu Zi and Qiu Zi. The oil content is 33.5 ~ 36.7%, and the oil is edible. The annual output of the largest plant is about 200 kg. The city's annual output is nearly 600 tons.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)